[Swedky]

Or just do this:

pawn Код:

new Float:Pos[3];
GetPlayerPos(playerid, Pos[0], Pos[1], Pos[2]);

for(new i = 0; i <= GetPlayerPoolSize(); i++)
{
    if(IsPlayerConnected(i) && GetPlayerDistanceFromPoint(i, Pos[0], Pos[1], Pos[2]) <= 15.0) SendClientMessage(i, COLOR_PURPLE, string);
}